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| author | Hans de Goede <hdegoede@redhat.com> | 2018-03-04 15:35:52 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-03-07 13:47:13 +0100 |
| commit | 583a9debd71e21a317b1fc7b293c22c49b33d9e4 (patch) | |
| tree | 18acb47f7eb222b7a5c0e97973311e65a83cdb3c /sound/soc/codecs/rt5651.c | |
| parent | ASoC: rt5651: Configure jack-detect source through a device-property (diff) | |
| download | linux-583a9debd71e21a317b1fc7b293c22c49b33d9e4.tar.xz linux-583a9debd71e21a317b1fc7b293c22c49b33d9e4.zip | |
ASoC: rt5651: Allow specifying over-current threshold through a device-property
OVer-Current-Detection (OVCD) for the micbias current is used to detect
if an inserted jack is a headset or headphones (mic shorted to ground).
Some boards may need different values for the OVCD current threshold
because of a resistor on the board in serial with or parallel to the
jack mic contact.
This commit adds support for configuring the OCVD current threshold
through the "realtek,over-current-threshold-microamp" device-property.
Note this commit changes the default value from 600uA to 2000uA,
because testing has shown 600uA to be a poor default.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/rt5651.c')
| -rw-r--r-- | sound/soc/codecs/rt5651.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/sound/soc/codecs/rt5651.c b/sound/soc/codecs/rt5651.c index 50e1c501b6b9..7ff1bc892cfd 100644 --- a/sound/soc/codecs/rt5651.c +++ b/sound/soc/codecs/rt5651.c @@ -1638,7 +1638,7 @@ static int rt5651_set_jack(struct snd_soc_component *component, RT5651_PWR_CLK12M_MASK | RT5651_PWR_MB_MASK, RT5651_MIC1_OVCD_EN | - RT5651_MIC1_OVTH_600UA | + rt5651->ovcd_th | RT5651_PWR_MB_PU | RT5651_PWR_CLK12M_PU); @@ -1684,6 +1684,26 @@ static void rt5651_apply_properties(struct snd_soc_component *component) if (device_property_read_u32(component->dev, "realtek,jack-detect-source", &val) == 0) rt5651->jd_src = val; + + rt5651->ovcd_th = RT5651_MIC1_OVTH_2000UA; + + if (device_property_read_u32(component->dev, + "realtek,over-current-threshold-microamp", &val) == 0) { + switch (val) { + case 600: + rt5651->ovcd_th = RT5651_MIC1_OVTH_600UA; + break; + case 1500: + rt5651->ovcd_th = RT5651_MIC1_OVTH_1500UA; + break; + case 2000: + rt5651->ovcd_th = RT5651_MIC1_OVTH_2000UA; + break; + default: + dev_warn(component->dev, "Warning: Invalid over-current-threshold-microamp value: %d, defaulting to 2000uA\n", + val); + } + } } static int rt5651_probe(struct snd_soc_component *component) |